mendaciousness

the tendency to tell lies her memoirs have such an air of pervasive mendaciousness that she seems to have lost all sense of what truth is Synonyms deceit, deceitfulness, falsehood, dishonesty, mendacity, untruthfulnessRelated Words artifice, craft, craftiness, crookedness, cunning, dissembling, dissimulation, double-dealing, duplicity, fakery, foxiness, guile, guilefulness, insincerity, trickishness, wiliness; falseness; hypocrisyNear Antonyms honor, incorruptibility; candidness, candor, frankness, good faith, plainspokenness, sincerity, straightforwardness; dependability, reliability, reliableness, trustworthiness; accuracy, objectivity; authenticity, correctness, genuineness; credibilityAntonyms honesty, integrity, probity, truthfulness, veraciousness, veracity, verity